Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-7-12
pubmed:abstractText
Wistar rats of a live weight of about 100 g received in 26 groups (4 animals/group) diets, each with a different lysine content. The rations given supplied the animals with 75%, 100% or 125% lysine of the calculated requirement. The source of protein in the diets was: barley (B), wheat (W), wheat gluten (WG), isolated soybean protein (assay protein) (S) or soybean meal (SM). For WG and S only the lysine levels 100% and 125% (SM = 116% and 125%) could be achieved. All diet groups were fed for 10 days with and without antibiotics (7 g Nebacitin/kg feed-DM). During the 7-day-period of the main experiment all 24 rations were supplemented with 0.5 g 15N-lysine/kg DM (48.3 atom-% 15N-excess, alpha-aminogroup 95% 15N-labelled). The nitrogen balance was improved only after feeding antibiotics with the diet S 100. It may be supposed that Nebacitin saved the second limiting amino acid methionine against microbial degradation in the digestion tract. The biological value (BV) of feed-proteins declined in the case of the diets B and W in the presence of antibiotics because the absorbed nitrogen was higher, this calculation basis for BV was therefore also higher without an improvement of the N-utilization. The 15N-excretion in faeces was significantly lower after feeding the diets B, W and WG with antibiotics. The 15N-excretion in urine was elevated in the most cases of the antibiotic supplement. The determination of a gross utilization of lysine and 15N-lysine resp. in relation to the lysine retention (availability) was not possible, neither using a labelling of diets with 15N-lysine.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0003-942X
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3-16
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:8512448-Administration, Oral, pubmed-meshheading:8512448-Animal Feed, pubmed-meshheading:8512448-Animals, pubmed-meshheading:8512448-Bacitracin, pubmed-meshheading:8512448-Diet, pubmed-meshheading:8512448-Dietary Proteins, pubmed-meshheading:8512448-Digestion, pubmed-meshheading:8512448-Drug Therapy, Combination, pubmed-meshheading:8512448-Feces, pubmed-meshheading:8512448-Food, Fortified, pubmed-meshheading:8512448-Glutens, pubmed-meshheading:8512448-Hordeum, pubmed-meshheading:8512448-Lysine, pubmed-meshheading:8512448-Neomycin, pubmed-meshheading:8512448-Nitrogen, pubmed-meshheading:8512448-Rats, pubmed-meshheading:8512448-Rats, Wistar, pubmed-meshheading:8512448-Soybean Proteins, pubmed-meshheading:8512448-Soybeans, pubmed-meshheading:8512448-Triticum, pubmed-meshheading:8512448-Vegetable Proteins, pubmed-meshheading:8512448-Weight Gain
pubmed:year
1993
pubmed:articleTitle
[The determination of a gross utilization of 15N-lysine in laboratory rats. 2. Comparative testing with an antibiotic supplement to the diet].
pubmed:affiliation
Institut für Ernährungsphysiologie, Humboldt-Universität zu Berlin, Germany.
pubmed:publicationType
Journal Article, Comparative Study, English Abstract